SKF 1309 ETN9/C3 45 mm ID 2 Row Ball Bearing -, 100 mm OD

This ball bearing is a self-aligning unit designed to accommodate shaft misalignment while supporting radial and light axial loads in rotating machinery. It integrates two concentric rows of steel balls within an open assembly to permit angular displacement and smooth operation at elevated rotational speeds, making it suitable for applications where alignment variation and continuous rotation occur.

• Two rows provide enhanced load distribution for longer service life
• C3 internal clearance permits thermal expansion without seizure
• Non-metallic cage reduces friction and limits noise generation
• Steel balls offer Durable rolling contact under cyclic loading
• Open end design facilitates inspection and lubrication access

• Suitable for conveyors experiencing shaft deflection
• Ideal for pumps operating at sustained high speeds
• Used with agricultural machinery subject to angular misalignment
• Can be used for industrial fans with frequent start-stops
• Appropriate for gearboxes requiring accessible bearings

It is rated for continuous operation up to 8,500 r/min.

The dynamic capacity is 39 kN and the static capacity is 13.4 kN.

The bore is 45 mm and the outside diameter is 100 mm, so shafts and housings must match these dimensions for correct seating.

The bearing has a cylindrical bore and a race width of 25 mm, requiring compatible housing fits and axial space.